There is only one way we are going to rebuild Britain – and that is if we do it together.

It is what I mean by One Nation. And for us to be One Nation we also need a politics where everyone can play their part.

I want the three million trade unionists linked to our party to be a real part of what we do.

I want ­shopworkers, nurses, ­engineers, bus drivers, construction workers, people from public and private sector to help change our country and our communities. I want the care workers and the car workers to join us.

This is at the heart of the changes I spelt out yesterday.

The Labour Party needs to have a relationship with trade unionists and not just the unions.

It will ensure the party always looks like the diverse country we seek to serve. And it will make sure we are ­representing the national interest.

The changes mean individual trade unionists will in future have to make clear they want to be affiliated to the Labour Party.

I do not want any individuals paying money to the party in affiliation fees unless they deliberately choose to do so.

Of course that might cost us a lot of money but it’s the right thing to do.

Political parties are too often seen as remote from people’s lives.

As somebody who deeply believes the Labour Party can be a force for good, we must change that.

We must change it with a party not of 200,000 but of many, many more.

It is open politics rather than closed politics. It is time for David Cameron to learn this lesson too.

When we had a problem in one of our constituencies, we acted swiftly and thoroughly.

A year ago David Cameron faced the dinners for donors scandal where wealthy Tory backers were given access to Downing Street in return for huge sums.

He still has done nothing about this. His party still relies on getting half its money from the bankers and the City.

We cannot go on like this.

I have acted to build a better Labour Party and a better politics for Britain. The time has come for David Cameron to act too.